Genuine Shimano replacement diaphragm (bladder) for the master cylinder reservoir of the hydraulic disc brake lever. Fitting a fresh diaphragm is part of the standard diaphragm-replacement service for a leaking or spongy lever.

Fits

  • BL-M9120
  • BL-M8100
  • BL-M7100
  • BL-T8100
Covered by Shimano's spare-parts warranty against manufacturing defects. For any warranty claim or assistance, return the item to Tune Cycles.
  • Genuine Shimano spare part: diaphragm only (Y1XK9801T)
  • Fits BL-M9120, BL-M8100, BL-M7100 and BL-T8100 brake levers
  • Replaces the reservoir diaphragm during brake lever service
Part numberY1XK9801T
TypeBrake lever diaphragm (reservoir bladder)
FitsBL-M9120, BL-M8100, BL-M7100, BL-T8100
Included1 x diaphragm
SKU SHM-Y1XK9801T
Barcode # 4550170820435
Brand Shimano